Spoonhead on an arowana considered a gen

And let the discussion begin
==comments==

Originally Posted by JerryT And let the discussion begin hi, u mentioned about spoon head was the result of too many inbreeding or genetic defect。 Im not picking or finding fault by your statement but more interested and hope to learn more about aro。 Some Reds naturally have spoon heads too。 Is this normal/ natural or also caused by inbreeding or is a defect?
Thanks。
>Let me begin by mentioning that whatever views I have regarding this topic comes purely from my personal opinion/experience。 I do not claim to know it all nor anyone should but I am simply making my own observations。 Please dont sue me
Looking from a scientific standpoint, heres a quote in anarticle from the Food and Agriculture Organization of the United Nations which mentions, ";In general, inbreeding studies with fish have shown that inbreeding decreased production phenotypes such as growth rate, fecundity, and survival, while increasing the number of deformed offspring。";。
It is a known statistic that inbreeding any sort of complex organism will produce offspring with a chance to exhibit inbreeding depression (not a good thing)。 One of these traits as mentioned in the above quote is the formation of deformed offspring。 Some may not agree with my next point, but in my opinion, the spoonhead (SH) is one such deformity of captive bred (CB) fishes。 If that is true, it is likely a SH specimen has a genetic makeup that is more inbred (hence, have amplified defective traits that affect the survivability and reproduction of offspring) than one with a wild caught (WC) phenotype。 Yes, that is my naive assumption, pls dont sue me。
A little bit from my personal experience。 I have been in the fish keeping hobby for more than a decade now and most of my rearing and breeding experience comes from bettas。 It has been my observation not only from the way bettas have drastically changed in appearance over the past decade but also from my own spawns, how inbreeding across several generations does tend to produce increasing numbers of weaker and deformed offspring。 One of the most obvious deformities that cannot be easily gotten rid off despite artificial selection is, you guessed it, the SH trait。 Some fish breeders have told me SH is a mixture of both a genetic deformity as well as a result of artificial selection。 I tend to agree only with the first part。
My experience with Arowanas is limited but a fish is still a fish。 If you ask any informed Polypterus Endlicheri keeper, they will tell you that one of the key differences between a WC and CB endi is the shape of the head。 Yes,Spoonhead on an AROWANA considered a genetic defect? you probably guessed it right again, CB endis tend to have SH。 Is it because people prefer their fishes to have a SH appearance? Maybe, I dont know。 Personally, I am quite sure the SH shape is not the original look and lets not call a deformity the norm。
I noticed however, for the arowana keeping hobby, there is a good number of people who prefer the SH look on their aros especially on the Reds。 Perhaps that is why we seldom see bullethead (BH) reds or golds, because all the farmers only want to supply the demand。 If you ask me to give my humble opinion, I would say its all an arowana farmers marketing strategy (he knows inbreeding [WC aros are no longer allowed to be used for captive breeding programmes {I may not be the most updated on this statement}] produces more and more SH) to keep raking in the dollars and keep their family fed。 If im not wrong there was a time when the extreme spoonheads akaFa Fu Long (FFL) aros sold for 5 digits or more, perhaps even till today。 No harm in doing that。 Happy buyer, happy seller。
Bottomline, if SH is not a genetic defect, lets use an extreme example and ask which of our arowana farmers are confident they can use a Fa Fu Long (extreme spoonhead/deformity) pair to produce bullethead offspring in the near or distant future。 Would they even use FFLs as brooders?
Perhaps have an inbreeding race to see which is faster/possible, to have a SH pair produce majority BH offspring VS a BH pair producing majority SH offspring, in the future。 I would place my money on the BH pair。 How about you?
>This kind of make sense。 I remembered my uncle used to keep aros 20 years back there wasnt any spoon head at that time。 I always thought spoon head aros derived from red genes。 If your observation was true that means this is 1 point we have to look out when selecting aros with such trait。
>Originally Posted by JerryT And let the discussion begin Any sort of morph in fish or aminals that deviates from the wild s train is considered to be amutation。。。 or ;defect
but some things may not affects its ability to survive and thrive,
in th wild, albinism is rare,most expensive fish tank in the world because fish and animals generally lose the natural camouflage ability。。。 but sometimes they do survive。 there is a few famous albino or leucistic crocs in Africa,also some tracked albino/leucistic whales。 they just adapt and be smarter than others。
for arowanas, people tend to breed in actual defects
spoon heads dont seem to affect their function but things like king hunchbacks。。。 thats just disturbing, sometimes even mouth deformities are line bred。
I personally dont like it。 I think that spoonhead is the furthers I would like。
also, if I am not mistaken, breeders will cross wild strains to strengthen the genes of bred arowanas。

Spoonhead on an arowana considered a gen Aquaculture Forum this is the same with most fish and especially discus。
>sorry my own opinion。。。。 if spoon head is genetic defect。。 rtg or hb which look like xb also an defect cos long ago rtg at max is 4th level shine。
I guess ppl tend to look at it as a improvement and not defect。 likewise。。 spoon head may hv been created for consumer likings。 I dont think it should be classified as defect or rather should be seen as evolving with time。
Just my very personal opinion only
>I dont really with the statement that spoon head is a defect as I believe there is spoon head Aro in the wild as well。 I have seen spoon head Aro way back when I am kid。
Having said that, the defects I acknowledge is FFL, short body, albino and some discoloration not to mention crook spine Aro。
>I always hear from various hobbyists that a pure blood is bullet head one。
A spoonhead xbs blood is already tainted。 Is it true? Senior who kept aro for a very long time please share。 Thanks
Haiz。 Personally I prefer a spoonhead Red。 I would also buy a spoonhead red in favor of bullet head red。
Genetic defect or not, I find spoonhead pleasing to my eye。
>If what is communicated is true, then there shouldnt be any bullet head Arowana in the market based on this argument since all Arowana we buy now are all captive bred。
>But most captive bred g2 red are bullet head? They also have gone thru many iteration as such。。
How can that be explain?
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